Carton structure



Oct. 1-0, 1933. c SNYDER I 1,929,456

CARTON STRUCTURE Filed March 19, 1931 3 Sheets-Sheet 1 I ==1fl==iirLL== E93 INVENTOR ATTORNEY Oct. 10, 1933.

G. C. SNYDER CARTON STRUCTURE Filed March 19, 1931 3 Sheets-Sheet 2 E 24 INVENTOR 5 8 cfinyar,

QN U ATTORNEY Oct. 10, 1933.

G. c. SNYDER 1,929,456

CARTON S TRUCTURE Fild March 19. 1931 3 Sheets-Sheet 3 l f :{:f

axssxxxvms 70 g/W TATToRNEY Patented Oct. 10, 1933 UNITED STATES PATENT OFF-ICE 15 Claims.

The present invention relates to improvements in cartons made up with plane edges and laminated walls which so coordinate on coacting blanks that when erected in box form, the corners 5 of the structure are square as in the modern Wooden cigar boxes.

Accordingly an important object is the provision of a carton of any box form, and adapted particularly for cigar containers or boxes, having plane, sharp angled cigar box edges or corners and constructed to stand up to hard usage.

An important feature of the invention resides in the provision of a cigar box structure made entirely of laminated paper .or board shouldered and reinforced and interlocked in such manner as to be rigid and strong and far cheaper to manuiacture than the present standard wooden cigar boxes.

Another of the main features is in the making of the two blanks to form the carton body, without the cover, in which one of the blanks is formed with laminated sidewalls, thus forming the outer bottom blank; and the. inner blank comprising an inner blank with laminated end walls, both the side and end walls being rabbeted or interlocked to form tie locks, the laminations being made in theso called out score and folded method, and the end walls forming collars or extensions for the receptive nesting of the cover when in the closed position.

Another feature is in the stock for making the paper board blanks in that the grain of the board in such, particularly in all main blanks, should run in the same range of grains as the attached elements, to permit shrinkage to become universal and equalized.

Another point is that preferably all of the blanks'as assembled, including under and side forming blanks and bottoms are made of doubled material through reversed matching thereof so that in addition to caring for universal shrinkage, the warping of the mounted boards are balanced against one another.

Another point is that the assembly of the outer bottom forming member to the inner bottom forming member-is accomplished by a mechanical gripping due to the offset of the inner lamina forming on the side members on the outer bottom member whereby the inner bottom member is gripped in the act of assembly.

Further advantages relate to the method of handling in that the blanks after being made in the customary machines and assembled are assembled by hand and stayed in a staying ma- -coated board, the grain of its pieces run the same chine rapidly by the act of matching the two blanks together and immediately aline and register the blanks for completing of the staying operations. To this extent the raising of one under and side memberand the inner matching of the cut score rabbeting causes immediate registration of the blanks all the way around.

The cover comprises a dual laminated opposed but being so glued'together that the shrinkage 5 is equalized between the two pieces and warpag'e prevented due to the counterbalancing of the matching of the cover pieces. Theglueing-of the cover and the coating of the carbon is as per the usual wooden box construction and need not be referred to generally.

On the question of staying the carton together a standard stock staying machine of the so called single stay type can be utilized, for connecting the-corners of'the structure.

Further objects incident in the particular construction of the parts of the structure will be hereinafter apparent in the specification and the accompanying drawings in which there is illustrated a preferred embodiment, and in which:

r Fig. 1 is a perspective view of the improved carton or cigar box, constructed according to my invention with plane sharp corners;

Fig. 2 is an enlarged fragmentary horizontal section, 'showing'the interlocking connection between and construction of the front wall and. end walls of the box, as on the dot and dash lines 2-2 of Fig. 1;

Fig. 3 is an enlarged fragmental cross section on the line 3-3 of Fig. 2, and showing the method of and construction of the front and bottom walls of the box structure;

Fig. 4 is a detail perspective view of the upper or inner bottom blank and its laminatedends having rabbeted and shouldered edges asshown;

Fig. 5 is an edge view of the outer or upper bottom blank before forming the ends thereof; Fig. 6 is a plan view of the blank from which the upper or inner bottom member and its laminated ends are formed; Fig. 6a is a reduced plan view of the blank from which the laminated cover is formed;

' ing side panel or wall portions 16 and 17 Fig. 8 is an enlarged fragmental vertical section of the cigar box lid and a portion of its supporting side wall, the section being taken on the line 8-8 of Fig. 1;

Fig. 9 is a fragmental perspective view of a portion of the cigar box showing the manner of interlocking the vertical edges to form a corner with the reinforcing strips and labels omitted;

Fig. 10 is a horizontal section taken on the line 10-l0 of Fig. 9, and. looking down, as the arrows indicate.

Fig. 11 is a plan View of the paper board blank showing the cut scores and interlocking shoulders required to construct the lower bottomv portion and its laminated sides of the cigar box structure;

Fig. 12 is an edge view of the blank shown in Fig. 11, better disclosing the cut scores in the blank and before folding. 7 v

Fig. 13 is a plan view of a cardboard blank for forming a box part of modified form.

Fig. 13a is an enlarged detail fragmental cross section of the above described blank taken on the line 13a--13a of Fig. 13, and showing a so called half out score and a full cut score forming a feature of the box construction.

Fig. 14 is a plan view of a cardboard blank for forming another box part of the modified form.

Fig. 14a is an enlarged detail fragmental cross section of the blank of. Fig. 14, taken on the line 14a-14a of Fig. 14 to clearly show a so called half out score and a full cut score for forming a box with plane sharp corners.

Fig. 15 is a perspective view showing a mortised interlocking corner of the modified form of box, without stays or wrapping.

Fig. 16 is a vertical fragmentary cross section of a side and its corners taken on the line 16--16 of Fig. 15.

Fig. 17 is a perspective fragmental view of the box corner of Fig. 15, but with interlocking and sharp corner forming stays in position for reinforcing the corner construction.

Fig. 18 is a fragmental corner detail taken on the line 18-18 of Fig. 17.

Fig. 19 is a greatly enlarged illustration of the construction shown in Fig. 18, to more clearly disclose a half out scored reinforced end corner for forming a plane sharp corner; and

Fig. 20 is a greatly enlarged cross sectional detail of a side corner of the box to clearly disclose the half out score construction for forming stiff reinforced plane sharp corners, the line of section being indicated at 20-20 in Fig. 17.

Referring now to the drawings, 10 designates the improved paper board cigar box made according to my invention, 11 indicates the outer or lower bottom member or blank, 12 indicates the inner or upper bottom member or blank and. 13 indicates the lid of the box.

In forming the outer or lower bottom blank as shown in Figs. 11 and 12, pairs ofcut scores 14 and 15 are made across the length of the blank at opposite sides of its longitudinal center formand an outer or lower bottom portion 18.

The paper board stock 19 used, is preferably pro-covered with a very thin layer of paper 20,

to give it a finish, and reinforce it. a 7

To form laminated side walls for the outer bottom 18, of the blank, the outer wall portions 17 are folded inwardly, over and down and secured by an adhesive to the side wall portions 16,

the width of the side wall portions 17 is not as great as the side wall portions 16, thus when the laminated side walls are formed by said portions or thicknesses, there are longitudinal spaces or channels 21, see Figs. 3 and '7 between the lower edges 22 of the portions 1'7 and the outer bottom portion 18.

When shaping the blank for the outer bottom part as in Figs. 11 and 12, notches or recesses 23, are formed at the sides which are intersected by the cut-score lines 15, dividing the side wall portions 16 and 17, and these recesses are defined by narrow outer shoulders 24 and wider inner shoulders 25, which should be about two times wider than said shoulders 24. The edges 26 of the blank material being cut back from the normal plane of the sides of said blank as indicated by the dotted line D in Fig. 11, so that when the side portions are folded and glued together there are rabbeted edges presented for tie looking with similarly constructed edges on the inner bottom part, presently described.

The inner bottom and end parts are built up from a blank shown in Figs. 5 and 6. This blank comprises an inner bottom portion 28, adapted to have its side edges underlie and interlock with the side wall portions 17 of the laminated side walls of the outer bottom member; outer end portions 29 and inner end portions 30 said portions being divided by cut score lines 31 and 32 respectively along which the portions are folded as in Fig. 4 of the drawings, where the portions 29 are inside, and in which figure the end portions 29 are shown folded against and adhesively attached to the end portions 30, and

these laminated walls are shown as turned up to form a strong box structure, having all connected edges thereof tie-locked each to the other part.

The blank for the laminated cover 13 of the box as shown diagrammatically in Fig. 6a, consists of a rectangularwrapped piece of cardboard having at its longitudinal center a deep cut score 13a on which the portions 13b, are folded to form the laminated box cover. The cut score is of a depth to extend entirely through the cardboard proper, but does not penetrate the tough superior paper covering which acts as a hinge and means for registering the half portions when the glueing together thereof take place.

In forming the blanks for the two bottom parts, the portions 29 and 30 forming the laminated ends of the inner bottom member are out somewhat wider than the portions 16 and 17 of the outer bottom part to provide collars 36, between which the cover 13 is received in nested relation.

The sides of the end portions 29 of the inner bottom blank are cut back as indicated at E in Fig. 6, so that when the portions 29 and 30 are folded and glued to form laminated end walls, these walls will have rabbeted edges to tielock with the rabbeted edges of the other members of the box body structure as clearly shown in Figs. 2 and 10 of the drawings.

Referring to Fig. 8 of the drawings, the cover 13 of the box is formed of a blank of covered paper board score cut at the center of its length, the halves being glued together to form a laminated structure which is preferably hinged to a side of the box body at its back by a paper wrapping 3'7, and at its front by a label or other wrapping 38, together with the usual hinge straps 3811.

To further reinforce and tighten up the box 'in the finishing operations I may employ sub- 7 kinds.

A slightly modified form of box is disclosed on the third sheet of the drawings which carries Figures 13 to 20, and in which: 9

Fig. 13 is a plan view of the outer bottom blank 50, which is formed with deep cut score lines 51 where a complete fold is made of the side portions 52 and 52', to form laminated sides 53 of the outer bottom box part, these deep cut score lines preferably extending entirely through the boardbox and ending at the usual wrapper, leaving that as the only connection between the portions, the bottom portion of this part being shown at 54 and defined by shallow cut scores 55, which preferably enter the cardboard 56 slightly inward of the paper covering 5'7. In this blank the outer side portions 52, are not as wide by a single thickness of the cardboard, as the joined inner portions 52, so that the inner bottom portion 58, of the inner bottom blank 59 (Fig. 14) may be interlocked with the outer bottom portion 54, by longitudinal grooves 60, formed between the ends of the side members 52 and theouter bottom portion 54. at both side corners, interiorly of the box.

The inner bottom box blank 58, has shallow cut scores 61 to define the bottom 58, and deep cut scores 62 to define the end foldable portions 63 and 63 collectively forming the laminated ends 64 of the box structure, and these end portions 63-63 are wider than the side portions to provide extended collars 65 at the ends to receive the cover 13 of the box in nested relation therebetween.

The side portions 52 and 52 at either side of the bottom portion 54 of the outer bottom blank 50 have mortised ends 66 adapted for interlocking engagement with the oppositely mortisedends 67 of the end portions 63 and 63 of the inner bottom blank 59.

In Figs. l'720 of the drawings, stay'strips 68 are shown as applied to the corners of the box structures. These strips'are of tough material and with the other wrappings of the box, a strong rigid structure is provided.

As above stated the proportions of the box details are greatly exaggerated and some of the usual paper reinforcing strips or layers have been omitted.

To secure sharp edges at the low end corners of the box, the length of the bottom portion 58 of the inside box blank, as indicated by the dot and dash line A of Fig. 14, should be less' the thickness of the cardboard at each end, than the length of the outer bottom member 50, as indicated by the dash and dot line, A of Fig. 13, so that the end portions at each end of the inner bottom blank 59 will fold upwardly in alinement with the ends '70, of the said outer bottom blank 56, see best in Fig. 19.

It will be understood when referring to the drawings in the showing thereof the parts are greatly exaggerated, as for instance the shoulders at either sides of the stays 39 at the corners would not be noticeable and the general appearance of the box would be plane with the walls unbroken.

In the claims I may use the term over-shoulders, meaning the shoulders 34 and 35 on the inner or upper bottom part, and the term under shoulders, meaning the shoulders 24 and 25 on the outer or lower bottom of the box structure.

Finally, it will be noted that the carton as above 8O outlined, has duplex walls throughout its finally assembled structure, is made up of three blanks for ease in machine or hand assembly, the blanks themselves being readilyrnade by machine processes with little board waste, and due to the mechanical gripping assembly of the bottom and side forming blanks, reinforce the rigidity of the carton when finally stayed and covered with the usual paper covering and labels. It is, further, obvious that the rabbeted corner engagement of the side and end wall members prevent their collapse from forces from any external direction, and that the laminated structure of the assembled carton or box approaches the usual customary wooden cigar box proportions and appearance with a great saving over the cost of wooden box structures.

What I claim is: g

1. A cigar box comprising an outer bottom part having laminated side walls, the ends of the inner lamina of each side wall stopping short of the bottom portion of said outer bottom part to form longitudinal locking grooves; an inner bottom part having laminated end walls, the side edges of the bottom portion of said inner bottom part, being disposed in interlocking relation with said locking grooves for interlocking the said bottom portions; means for tie-locking the ends of said walls, and a laminated cover for said cigar box.

2. The method of making cigar boxes, consisting of providing foldable blanks having cut score lines and projections, folding one of said blanks on the cut score lines, for providing laminated box sides,'and a bottom portion and rabbeted and shouldered portions on the ends of said box sides; folding another of said'blanks on said out score lines, for providing laminated box ends, a bottom portion and rabbeted and shouldered portions on the end portions of said box ends; tie-locking the end portions of said box sides and box ends; staying the structure for forming plane sharp angular corners; folding the third of said blanks along a semi-divisional cut score line for forming a lamiill] 'nated lid for said cigar box, then hingedly stay- 'tom; assembling the box parts by placing the bottom of the last named part, on the bottom of the other part; tie locking the laminated sides and ends of the box parts together; folding a third cardboard blank to form a laminated cover for said box, then hingedly attaching the cover thereto.

4. A blank for forming a box part, having twoparallel outer and inner cut scores near each of its ends, defining outer portions and wider inner portions, and a bottom portion, said blank also having side recesses straddling the outer cut scores and defined by unequal shoulders, the sides of said blank being out back from the general side plane of the blank and from said recesses outwardly; said blank portions when folded on said out scores forming laminated box sides having rabbeted end portions and shoulders, and al50 locking groove in connection with the said bottom portion. V

5. A blank for forming a box part having two parallel outer and inner cut scores near each of its ends defining outer and inner portions, and a bottom portion, said blank also having side extensions straddling the outer out scores and defined by unequal shoulders, the sides of said blank being cut back from the general side plane of said blank and from said extensions outwardly; said blank portions when folded on said out scores, forming laminated box ends, having rabbeted end portions, shoulders, and box collars. I

6. A substantially rectangular laminated cigar box comprising one sheet of cardboard having a single outer bottom ply, and opposed double side walls; a second sheet of cardboard cooperating with said first sheet and including a single inner bottom ply, and opposed doubleend walls, which latter form extensions above said first walls; and another sheet of cardboard folded upon itself and engaging at its ends the inner faces of said extension to form a cover, said latter sheet being seated on the top edges of said side walls.

7. A laminated cigar box comprising one sheet of cardboard having a single outer bottom ply,

and opposed double side walls, hinge means carried by one of said walls; a second sheet of carda board having a single inner bottom ply cooperating with said first ply, said second sheet including opposed double end walls, which latter engage the ends of said first walls, top extensions on said end walls; and another sheet of cardboard folded upon itself and engaging at its ends the inner faces of said extensions to form a cover, said latter sheet being seated on the top edges of said side walls, and said means being also carried by one side edge of said cover.

8. A laminated carton comprising one sheet of material having a single outer bottom ply, and opposed double side walls; and another sheet of material having a single inner bottom ply engaged on said first ply, and opposed double end walls engaging said first walls.

9. A laminated cigar box comprising one sheet of cardboard having a single outer bottom ply, and opposed double side walls, said walls having therein top end recesses and including below the latter stepped marginal portions; another sheet of cardboard having asingle inner bottom ply engaged on said first ply, and opposed double end walls, top marginal portions extending from said end walls and engaging in said. recesses, and stepped marginal portions provided on said end walls and engaging said first portions.

10. A cigar box comprising an outer bottom part having laminated side walls, the ends of the saidlocking grooves for interlocking the said bot- .tom portions; and means for attaching the adjoining edges of said walls at the corners of the box, said means including the edge portions of said walls, which latter are stepped for interfitting action.

11. The method of making cigar boxes, consisting of providing fol-:lable blanks having cut score lines and projections, folding one of said blanks on the cut' score lines, for providing laminated box sides, and a bottom portion and rabbeted and shouldered portions on the ends of said box sides; folding another of said blanks on said out score lines, for providing laminated box ends,

a bottom portion and rabbeted and shoulderedportions on the endportions of said box ends; tielocking the end portionsof said box sides and box ends; and staying the structure for forming plane sharp angular corners.

12. The method of forming a cigar box having ing end wall sections, a sheet of cardboard having a bottom ply engaging the outer surface of said first ply, outer lateral wall panels continuous with the second mentioned ply and engaging the lateral edges of said sections, and inner panels continuous with said outer panels and having edges engaging the lateral margins of the first mentioned ply.

14. In a cigar box comprising an inner bottom ply and integral end wall sections, a sheet of cardboard having a bottom ply engaging theouter surface of said first ply, outer lateral wall panels continuous'with'the second mentioned ply and engaging the lateral edges of said sections, and inner panels continuous with said outer panels 'and having edges engaging the lateral margins of the inner surfaces of said sections and of the first mentioned ply.

15. In a cigar box comprising an inner bottom ply and having continuous therewith end wall sections, said sections including top extensions, a sheet of cardboard having a bottom ply engaging the outer surface of said first ply, outer lateral wall panels continuous with the second mentioned ply and engaging the lateral edges of said sections, and inner panels continuous with said outer panels and having edges engaging the lateral margins of the inner surfaces of said sections and of the first mentioned ply, said panels having registering notches therein for receiving said extensions.

- GEORGE C. SNYDER. 

